[cisco-voip] CUSP

[STEVEN CASPER]

What do you think about running 2 Service Providers to one box? I was thinking if I go with ISR I would use 2 CUBEs per data center and separate the providers but with ASR I was hoping I could use one ASR per data center and consolidate the SIP trunking.
 
Steve

>>> Nick Matthews <matthnick at gmail.com> 6/17/2010 2:57 PM >>>
A few things with the ASR CUBE (CUBE-enterprise):

-It's not certified with CCBU (CVP) yet, wait until december if this is the case
-The 1002/1004 have software redundancy - dual IOS images running.
-The 1006 has hardware redundancy - two supervisors
-It has a feature called per-call debug (PCD) which allows you to pick
a single SIP call out of the hay stack
-It will have a 6 month to 1 year lag on features for a while, since
the data architecture is different.  The data and control stack are
completely separated which requires additional programming (and then
testing).

The 3945E can do 2500 calls, the 1002/1004 with RP1 at 1750, and RP2
on the 1004/1006 at 15k.

-nick

On Thu, Jun 17, 2010 at 1:58 PM, STEVEN CASPER <SCASPER at mtb.com> wrote:
> Thanks for the info. I was looking at the 3945-E ISRs for CUBE. Are there
> other reasons to look at the ASR besides greater capacity?
>
> Steve
>
>>>> Nick Matthews <matthnick at gmail.com> 6/17/2010 10:43 AM >>>
> IMO - CUSP was a way for us to do a few things we could not do previously.
>
> 1st - It allowed us to have a 'SIP gatekeeper' of sorts, where you can
> store large amounts (10k+) of routes in a centralized location.
> 2nd - It allowed a larger session count for SIP trunking with ISRs.
> Since you can load balance to multiple CUBEs with CUSP, you can make a
> 'CUBE stack' to increase the session count.  It also lets you take
> CUBEs out of service one by one for maintenance/replacement which is
> nice.
>
> It has some other benefits as well - the modification ability is
> unmatched.  You can route calls on almost any part of the SIP message
> you wish, with incredible flexibility.
>
> The problems are different - lack of SNMP support (may be available in
> a future release), no CAC abilities (at the moment), increased
> complexity, etc.
>
> I personally would rather put in some ASR CUBEs that each have a
> capacity for 15k calls, with redundant supervisors, on redundant boxes
> (coming soon), than complexify my SIP environment with CUSP.  If you
> need centralized SIP routing or very flexible SIP modification and
> routing, then it's a good box to look at.
>
> -nick
>
> On Thu, Jun 17, 2010 at 9:28 AM, STEVEN CASPER <SCASPER at mtb.com> wrote:
>>  Any opinions/thoughts about the Cisco Unified SIP Proxy product? Not a
>> lot
>> out there on cisco.com. I am getting ready to deploy a centralized SIP
>> trunking solution in the next couple of months from two carriers at two
>> geographically diverse data centers with ISR CUBE and was wondering if
>> CUSP
>> buys me anything.
>>
>> Steve
>>
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